This prototyping shield is the best out there (well, we think so, at least), and now is even better with Version R3 - updated for the most...

This prototyping shield is the best out there (well, we think so, at least), and now is even better with Version R3 - updated for the most compatibility with just about all the Arduinos! It works with UNO, Mega, Leonardo, NG, Diecimila, Duemilanove, and compatible Arduinos. Yun's and Arduino Ethernets have a chunky Ethernet jack that gets in the way of stacking, you can use the stacking headers included and it will work, just...

The next generation Proto-ScrewShield is a dual-purpose prototyping shield. Not only does it have a large 0.1" grid prototyping area but it...

The next generation Proto-ScrewShield is a dual-purpose prototyping shield. Not only does it have a large 0.1" grid prototyping area but it also extends the Arduino pins to sturdy, secure, and dependable screw terminal blocks. You even get a few bonus terminals for extra GND and four 'free' terminals for whatever connections you wish! New! As of June 23, 2014 we now have an R3 update to this design - we now have a stacking...

This shield kit pack will allow you to turn any Arduino into an AVR chip burner! It is specifically designed for people who want to program...

This shield kit pack will allow you to turn any Arduino into an AVR chip burner! It is specifically designed for people who want to program Atmega328P's to turn them into Arduino bootloader chips using an AVR-ISP sketch, but it can also be used to make a 'standalone' AVR ISP programmer - so that you can program blank chips without a computer! We use this set up in the shop to program chips for our kits. We even include a blank...

The patch shield is a cross between a patch panel/bay and a Wingshield. Its designed for times when you want to have remote sensors, or a control...

The patch shield is a cross between a patch panel/bay and a Wingshield. Its designed for times when you want to have remote sensors, or a control panel, or LEDs, or...practically anything where you want to avoid doing a lot of icky wiring! The shield comes with 4 breadboard-friendly satellite headers. To connect, use any off-the-shelf Ethernet cable. On the shield itself, the sockets act as a patch bay so you can quickly try out different wiring...

Works with the Uno! This prototyping shield is the best out there (well, we think so, at least). It works with UNO, NG, Diecimila and Duemilanove...

Works with the Uno! This prototyping shield is the best out there (well, we think so, at least). It works with UNO, NG, Diecimila and Duemilanove Arduinos. You can use it with a Leonardo but it will not break out the hardware SPI pins (they're only on the ISP connector underneath) or the IOREF/SDA/SCL pins. However, the SDA/SCL pins on the Leonardo are also on digital #2 and #3 so you can still use them by connecting to #2 and #3. Check out...

Think you can do better? Design your own shield on the cheap with this DIY parts kit. You get a 3.2" x 2.5" (~ 8.1cm x 6.3cm) single-sided...

Think you can do better? Design your own shield on the cheap with this DIY parts kit. You get a 3.2" x 2.5" (~ 8.1cm x 6.3cm) single-sided phenolic board with copper solder pads and mounting holes and a extra-special stacky header set. This one has one magical 8-pin header that has been bent so that you can plug it into the 'not-quite-0.1"-spacing" arduino headers Solder it any which way you want, lots of room for hacking!